Update calculator to handle goertzel

ch32v/ch32v203-goertzel/Makefile

@@ -5,7 +5,7 @@ TARGET_MCU:=CH32V203G6U6
 TARGET_MCU_PACKAGE:=CH32V203G6U6
 CH32V003FUN:=../ch32v003fun/ch32v003fun
 
-EXTRA_CFLAGS:=-Wno-unused-function -I../../lib -I../ch32v203-fft/lib
+EXTRA_CFLAGS:=-Wno-unused-function -I../../lib -I../lib
 
 include ../ch32v003fun/ch32v003fun/ch32v003fun.mk
 

ch32v/ch32v203-goertzel/adcgoertzel.c

@@ -68,7 +68,7 @@ SOFTWARE.
 #include "ssd1306.h"
 
 
-#define PWM_PERIOD (31-1) //For 27.0MHz, use 36MHz if quadrature -- It appears to be good for *244 in the table?  WHY 26MHz???!?!!?
+#define PWM_PERIOD (31-1)
 
 #define ADC_BUFFSIZE 512
 
@@ -83,7 +83,6 @@ const int32_t g_goertzel_omega_per_sample = 1238618695; // 47/256 -> 27.01920 MH
 const int32_t g_goertzel_coefficient = 870249096;
 const int32_t g_goertzel_coefficient_s = 1963250500;
 
-
 #define LOG_GOERTZEL_LIST 256
 int32_t gertzellogs[LOG_GOERTZEL_LIST*2];
 int     gertzellogs_head;

ch32v/ch32v203-goertzel/ttest/ttest.c

@@ -13,6 +13,7 @@ int32_t g_goertzelp_store, g_goertzelp2_store;
 int main()
 {
 	//XXX XXX NOTE If you are computing the coefficients, you can plug the value in here.
+	// You can get this number from calculator.html. I've had better luck with "inverse goertzel" numbers.
 	g_goertzel_omega_per_sample = (47.0/256) * 3.1415926535*2.0*(1<<29);
 	g_goertzel_coefficient   = 2 * cos( g_goertzel_omega_per_sample / (double)(1<<29) ) * (1<<30);
 	g_goertzel_coefficient_s = 2 * sin( g_goertzel_omega_per_sample / (double)(1<<29) ) * (1<<30);